Flukes and tapeworms belong to the phylum
A. Platyhelminthes.
B. Cnidaria.
C. Porifera.
D. Nematoda.
E. Annelida.
Answer: A. Platyhelminthes.
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Which one of the following proteins is not known to regulate translation through interaction with the 3' UTR of the mRNA?
A. CPEB B. Maskin C. eIF4E D. PUF proteins
The breakdown of glucose to carbon dioxide and water is an
A. exergonic reaction in photosynthesis. B. endergonic or exergonic reaction, depending on the step. C. endergonic reaction in photosynthesis. D. exergonic reaction in cellular respiration. E. ndergonic reaction in cellular respiration.
Regions that are subjected to heavy volcanic activity have dark soils called ________
Fill in the blank(s) with correct word
The relatively high percentage of individuals in West Africa who are heterozygous for the sickle cell trait is an
example of _____. a. natural selection b. genetic drift c. spontaneous mutational spread d. heterozygote disadvantage e. the founder effect